Opting Out of Google's AI Answers Rarely Helps a B2B Site

For most companies that sell to engineers, the new switch that takes a website out of Google's AI answers is best left exactly where it is. The argument for flicking it was mostly made on somebody else's behalf.

First, what it actually is, because the coverage has blurred it. Every property in Search Console now has a setting, under Settings and then Search generative AI, that decides whether the site's links and content are used in three places: AI Overviews, AI Mode, and the generative AI features in Discover. The default is to include. Switching to exclude takes, by Google's own account, a few days to bite. Google began offering it to a subset of site owners in the UK in June, made it available in France on 22 July alongside the French launch of both features, and extended it to every site worldwide on 31 August 2026. The Search Console Help page for the control is short, and worth reading before anyone decides.

It is equally worth being precise about what it does not do. It is a Search Console setting, not a robots directive. It does not take you out of Google Search: noindex remains the way to do that. It does not govern training, for which Google points to Google-Extended, a separate control. Google says the choice is not used as a ranking signal for ordinary results, so the blue links stay where they were. And the Gemini app is not among the surfaces it lists. What it removes is your presence in the synthesised answers on Google Search, together with any impressions or visits those answers would have sent you.

Who the switch suits

The case for it is a publisher's case, and a sound one. If your revenue depends on somebody reading the article on your page, beside your advertising, then a summary that answers the question above the link is a substitute for your product. Keeping your text out of it is defensible.

An industrial supplier is not in that business. Nobody pays to read your application note. The page giving a valve's pressure rating, the compatibility table, the note on which seal material survives which fluid: these exist to put a specific product on a specific shortlist. If a generated answer repeats the rating and cites you as the source, the page has done its job.

Think, too, about where a technical buyer is when they turn to AI Mode. They are not browsing. They have a constraint, a material, a tolerance, and they are typing it out in full. The answer that comes back tends to name candidates. Opting out does not stop that shortlist being written. It only ensures it is written from your competitors' pages, and from whatever distributors, directories and forums say about you, none of which your own setting touches.

The cost of opting out is invisible, since nobody writes to say you were left off a list. The benefit is usually notional.

The narrow cases where it does make sense

Fairness requires admitting there are some. They share one trait: the content is the thing being sold, not a description of the thing being sold.

• Paid technical content. Design guides, calculation methods or standards commentary sold by subscription or licence.
• Material held under someone else's licence. Datasheets or drawings published under a manufacturer's terms that may not stretch to reuse elsewhere. The switch is a blunt instrument here, because it applies to the whole site.
• Pages where a paraphrase is a liability. Safety instructions, where a condensed answer that drops a caveat is worse than no answer. Even here, the page-level controls Google lists in its documentation on AI features, such as nosnippet and data-nosnippet, are a more proportionate tool than removing an entire catalogue.

If none of those describes your site, the switch mostly protects a page from the one reader it was written for.

A word on our own position. PSentry does not monitor AI Overviews or AI Mode; it measures ChatGPT, Claude, Gemini and Perplexity, by language and market, so nothing above is an argument for buying it. The free place to see what Google's surfaces already do with your site is the generative AI performance report that arrived in Search Console alongside the switch. An exporter leaving a place where shortlists get written ought to do so having looked, not because it felt like taking back control.